<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>转义字符的使用</title>
  </head>
  <body>
    <script>
      var str = '今天是星期四了，\n明天我就可以回家了';
      alert(str);
    </script>
  </body>
</html>
